Charlie Darwin Textiles is a sustainable clothing and sewing-pattern brand founded by Leah, who creates garments in her Philadelphia studio. The brand focuses on durable, comfortable linen clothing made with natural fibers and plant-based dyes, alongside patterns and resources that help customers sew their own wardrobe. Its offerings include made-to-measure clothing, sewing patterns and kits, linen fabrics, and accessories such as scarves.

Customers can choose custom sizing, including height adjustments, and garments are cut and sewn to individual measurements. For makers, Charlie Darwin provides expert instruction, fabric guidance, sewing tools, and a free guide to building a linen wardrobe. The brand uses OEKO-TEX certified linen sourced from Europe, while its patterns are designed and printed in the United States.

Leah emphasizes minimal-waste, made-to-order production, durable construction, mendable garments, and fair compensation for craftsmanship. Charlie Darwin Textiles serves people seeking a more earth-conscious wardrobe, whether they prefer to sew their own clothes or have a custom garment made